Katara is separated from her friends, and so she's left to travel the earth kingdom on her own. She stumbles across Zuko, who is similarly travelling on his own. They decide that pairing up and travelling together would be best
Sokka you can't just be calling your newborn sister ugly!!
So halfway through coloring this, I realized that Sokka and Katara are only a year apart, so toddler Sokka wouldn't hold newborn Katara in canon, so uhhhhh I call this piece "my spectacular au where Sokka is a little older because I'm a fake fan and cant remember the gaangs ages" lmao.